Who, like me, from the old DP2 (or DP2s or DP1 or DP1s) umsteigt will probably resent that neither the old nor the close-up lens hood fit and you have to spend much money on accessories again.
Provides you the old close-up lens to the "Step Down Filter Adapter Ring Adapter 49mm 46mm to 49-46", ASIN: B00F1HUT3K, then they can be used without restriction!
As Gegenlichtblende I use, because the lens has a 49er thread, then just a foldable 49er lens hood, eg "B + W 900 Rubber Lens Hood (Lens Hood, Lens Hood) foldable 49mm", ASIN: B0058RONWG
the cost (currently) 7.99, is foldable and looks great!
Already you have saved a lot of money ;-)
The two products I have also rated with a short review, see my profile.